Parameter name
Default value
Description
NAT_SIGNALING_KEEPALIVE_
OVERRIDE_SEC
29
Sets the interval, in seconds,
between keep-alives used to
refresh NAT bindings for the
phone signaling IP address and
port.
Valid values:
• None: The phone will use the
default value.
• 15 – 900: The phone will use
this value as the keep-alive
interval for every SIP
registration and dialog.
Related links
Session Traversal Utilities for NAT overview
on page 62
Virtual LAN (VLAN)
VLANs provide a means to segregate your network into distinct groups or domains. They also
provide a means to prioritize the network traffic into each of these distinct domains. For example,
a network may have a Voice VLAN and a Data VLAN. Grouping devices that have a set of
common requirements has the following advantages:
• greatly simplifies network design
• increases scalability
• improves security
• improves network management
The networking standard that describes VLANs is IEEE 802.1Q. This standard describes in detail
the 802.1Q protocol and how Ethernet frames get an additional four-byte tag inserted at the
beginning of the frame. This additional VLAN tag describes the VLAN ID that a particular device
belongs to and the priority of the VLAN tagged frame. Voice and video traffic typically get a higher
priority in the network as they are subject to degradation caused by network jitter and delay.
VLAN separation
The Avaya J100 Series IP Phones have an internal network switch that is capable of using VLANs
to segregate traffic between the LAN port, the PC port and the internal port that goes to the CPU
of the phone. You can have VLAN functionality on this switch and configure the switch to isolate
the traffic destined for the CPU of the phone from that destined to the PC port.
The configuration of the internal switch of the phone can be done through the
46xxsettings.txt
file, LLDP or DHCP. It is preferable to configure the VLAN settings on the
Virtual LAN (VLAN)
April 2020
Installing and Administering Avaya J100 series IP Phones in an Open SIP
environment
65